Lamp.



H. N. KERR.

, LAMP APPLIOATION FILED MAR. 16, 1911.

Patented May 20, 1913.

, mvewron HENRY N WITNESSES Y E N R 0 w R w H Y a v H. N. KERR.

' LAMP.

APPLIOATION FILED MAR. 15, 1911.

Patented May 20, 1913,

2 SHEETS-SHEET 2.

v as

WITNESSES I INVENTOR HENRY N. KERR BY HIS TT'OR NEY To all whom it may concern UNITED STATESPATE T FIC i HENRY IN. KERR, OF

PHILADELPHIA, rENNs'vnvANl ASSIGN03. Tomi! s. or PHILADELPHIA, PENNSYLVANIA. v

LAME.

Be it known that I, HENRY -N.* Kn'mi, a

citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certainlmprovementsin Lamps, of which thefollowing is-a specification.

My inventlon relates to that class of oil lamps'in which the oil is conveyed to the burnerby means of a wick and is vaporized and mixed with air, so as to heat to incandescence a mantle supported above the burner. v e 1 One of the objects of my'invention is to so construct a' lamp of'this character'thatj it may be used either with or without the mantle, further objects being to readily control the feed of air to the inner and outer sides of the flame atthe top of the wick,

toiprevent the transmission of heat in dan gerous volume-to the oil font of. the lamp,

and to ermit ready separation of the mantle hol erand chimney'holder as when the Fig. 2 is an enlarged vertical section of the- 'burner portion of the lamp, and Fig; 3 is openings 4 for this purpose. I i Secured to the upper portion of the font is a basket 5 slotted, perforated or othera perspective view ofthe chimneyholding member of the same. a I In the drawings, 1 represents the oil font of the lamp, through which passes the innerwick tube 2, the latter receiving a su Pp y of air at its lower end through the 'base.3 of the font which is provided "with air inlet wise constructed, for the free flow of air to the interior of the same,th1s basket carry- ,ing the outer wick tube 6, and the' tubular wick 7 being contained between the innerr (and outer wick tubes and being engaged I 10 or is otherwise constructed for being ra1sed and lowered so as to raise and lower the wick in the same manner 'as in an 0rdi'- 'naryfoil lamp of the Argand type At-thetop of the inner wickvtube 2 is a, v

\ carrying ring 19 are formedflug's or 'depres-f *sions 32 V which may'be'passed vertically by .a'tubular wick carrier 9 which has, atv

:one side, a rack for engaging with a pinion cap 11 which has perforations 12 in its walls and other perforations 13 in its top, so that a ortion of the air rising through the inner wick tube is expelled through the perforations 12 in the side walls of the cap and tions of the air are expelled. through the perforat1ons13 1n .the top of thefcap and are directe upwardly into the sp'acelwithinthe mantle so as to provide an additional ortion of'the' upper portion of'the inner wick tube 2 and Specification of Letters Patent.- Patented May 20, 1913, Application filed March 15, 1911. Serial No. 614,734.

I acts as a flame spreader, while other por- 1s carried by a central rod 14, 'which is threaded as to its lower portion and engages an internal thread in a bar 15, which bridges thelower portion of the inner tube -2, the rod 14 hav ng, at its lower end,-a handle 16 whereby it may be readily turned so as to raise or lower the ca 11 and thus regulate the su ply of air delivered to the inner surface 0 wick.

Air is directed flame bymeans of an internally projecting flange 17 at the to of the mantle-carrying the flame rising from the top of the v71s against the outside of the ring 19, the latter aving suitable supports for the'rod or rods 20 from which-the mantle 21 is suspended in the usual manner, the

lower edge of said mantle, by preference, 'overlappingjthefring '19, as shown in the drawing. a v

The air whichfis supplied to the outer portion of the flame arising from the wick enters throu h' perforations in a ring 22 secured to an projecting outwardly from the outer wick tube 6, and this ringalso servesfor the support of the chimney holder 23 which has .upper' and lower horizontal flanges 24=- and 25, 11, vertical flange 26 at the inner portions of the horizontalflange 24, and another vertical, flange 27 -connecting "the horizontah flanges 24] and 25, said flange 27 being connected to a vertical flange of the ring 22by means ofa bayonet joint or other suitable device, whereby,the chimney holder canbereadily removed fromlthe burner, when desired. 1

In the. vertical flange 261of 'the chimheyholder are formed inc11ned;cam';s1ots 30.ter-- nit ating, atithei'r lower" ends in vertical ofi- -sets'3I-formed in said ash shown-in Fig. '3, and 'on the s'idewalls: of the mantle turning said mantle holding ring' the lugs thereon will not only engage with 331d slots to lock the said ring to the chimney holder but will also provide a means for I as a means to throttling this air supply to any desired extent necessary to secure the best results in combustion; This construction also provides for the ready removal of the mantle and mantle holder if, from any cause, such, for instance, as the impairment metal, mica, orother available material, and which, when adjusted to the top of the chimney, increases the. draft of the latteror destruction of the mantle, it is desired to use the lamp with a. naked flame such as ,that of the ordinary Argand lamp. In

order, however, topermit of the effective use of. the lamp either as an ordinary Argand? lamp or as amantle lamp, provision should be made for varying the draft of the chimney 33 and for this purpose. I- provide the top of the latter with a sliding or telescopic extension 34%- which may beof sheet and renders it available for use in'connection with a mantle, the extension 34 being adjustable vertically on the chimney so as to vary the extentpfits draft and being either removed or fully depressed'so that it will not add to the. heat of the chimney when the mantle'has been removed from the ordinary way. I The. horizontal flange 25 of the chimney holder is perforated for the passage of air burner and the latter is operating in the which ascends adjacent to the chimney and serves to prevent the overheating of the latteras well astosupply oxygen for. main taining combustion. spite of'thisprecaution, however, the chimney holder be comes highly heated and in order to prevent the transmissionto the-Ioil font .1 ofthe l'ampof such. a degree of heat as would. over-.

heat or vaporizethe' oil contained therein, the chimneyholder instead of being; supported upon'the basket 5, as.usual,,is wholly free from any connection with said basket and is supported entirely by the ring 22 -which is mounted upon the outer wicktube 6, as shown in Fig. p

To prevent the transmission of heat to the oil font through the outer-wick tube 6, the latter is connected with the font through the medium of the base portion of the basket 5, consequently the latter serves as a radi-' ator for disseminatingthe heat of the outer wick tube, since cool air is always flowing through the slots orperforationsof the basket and is abstracting'heat therefrom so .wardly extendi outer wick tube,--- a'n air throttlin to transmit, through the medium of the ring 22, suflicient heat to the upper portion of the wick tube to insure the proper vaporization of the oil at the upper portion of the wick.

In order to properly deflect the air at the upper end of the outer .wick tube, the same isusually provided with a horizontal outflangeat the top, but it has been 'found 1n practicethatoil would accumulate on this flange and the burning of this oilresults in the production of a smoky flame which carbonizes the mantle and causes the lam to emit an objectionable odor. I there ore provide, at the top of the outer wick tube, ahollowflange or trough which, while still providing for the desired, outward deflection of the air at the top of the wick tube, dispenses with the horizontal. flange or shelf-and with the objectionsthereto above noted. By preference, the outer wick tube has an inward offset at the top as to compress the wick at or near the top-.andfprevent down draft of flame through the wick, and also provide a seat for aring 35, the latter having, at the top, a curved or inclinedv and outwardly projectmg flange 36 between whose inner face and the outer face of the wick tube 6 is formed a tapering groove or channel 37, Fig. 2.

I find that when the lamp is in operation and the air .is flowing rapidly over the upper edge of the flange 36 there is no tendency of the oil to flow into or collect in the taporing groove 37, which remains clean and ree rom oil during the entire time that the lamp isin operatiom Lclaim: v

- I. The. combination, in'an oil lamp, of

an outer wick tube, a mantle carrier, a sup-- port therefor, and a throttling flan e forming part of said mantle carrier an servin to direct air inwardly over the top of the outer wick tube and against the flame at the; top of the wick.

2.. The combination, in an oil lam of an outerwick tube, an air throttling ange which, when position, serves to direct air inwardly over the top of said outer tube and against the flame at the top of the wick, and a sup ort for said flange from which it is detac able.

, 3.:The combination, in anoil lamp, of an flange which serves to direct air inwar ly over the top of said. outer wickv tube and against the flame at the top of the wick, said throttling flange having a support upon'which it is adjustable vertically in respect to the wick tube so as to vary the area of the air passage between said wick tube and flange. 4:. The combination, in: an oil lamp, of

means for guiding and retaining the upper end of the wick, a mantle carrier, a suping an inwardly projectingthrottlinig fecting vertical adjustment of said mantle.

carrier so as to vary the area of the air passage between. its throttling flange and the top of the outer -Wick tube. i

6'. The combination, in an oil lamp, of a chimney holder having inclined cam slots and vertical oflsets' communicating with. the

lower ends of the same, with a mantle holder having lu s adapted to pass through'said vertical 0 sets and engage the inclined slots. 7. The combination, in an oil lam of a lamp font, an outer wick tube, a c imney holder, means for supporting the latter upon the wick tube, and a basket surrounding the wick tube and having openings for the passage of air therethrough, said basket being free from contact or connection with the chimney holder.

i 8. The combination, in an oil lam of an 011', font, an outer wick tube, a c ey holder, means for supporting the latter upon the outer .wick tube, and a basket connected to the oil font and surrounding the wick tube but free from connection with the chimney holder, said basket constitutingthe sole means of connection between the outer wick tube and the oil font.

9. The combination, in an oil lamp, of an outer wick tube having an inwardly offset portion at the top, with a ring seated upon said ofiset portion of the tube, said ring having at the top an outwardly flaring flange forming a groove which surrounds the upper end of the outer wick tube.

In testimony whereof, I have signed my name to this specification, in the presence of two subscriblng witnesses.

I IENRY KERR. Witnesses: i i I KATE A. BEADLE,

, HAMIL'mN D. v 

